2004 Mobius LS Resurrection

Here is the story, I am sticking to it. :confused:
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My dad Picked up a "freshwater" 2004 Mobius LS with the Indmar Assault 310 in it basically sight unseen for right at $22,000 around this time last year. The motor hull had 3xx hours on it and the motor had been replaced or rebuilt early on in its life. Overall it was pretty clean, a little dated looking with the faded yellow and gray upholstery and the heavily faded grey carpet. The stereo had 6 JL mx650 cabin speakers, 4 Wetsounds Icon 8 tower speakers and a single JL 600 6 Channel amp driven by a Sony head unit. The remotes were the old white aftermarket ones that had gracefully faded to look exactly the same color as a prosthetic limb or an early 90's compaq presario.

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The boat ran SLOW which turned out to be a combination of a bad center ballast fill valve, a very crusty carb, ancient spark plugs, bad fuel pressure switch (which left me stranded) and a bum fuel pump. After replacing the plugs, pump and switch, and removing the center ballast bag (temporarily) the boat ran okay for the rest of the summer and we got some good use out of it.

Sean

The Mobius looked great from the dock and once it was "fixed" it towed fairly well too.

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The drivers seat was way too low (I am 6-0) so I had to resort to the "bro sit"

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It was nice to get some riding time in even though the rest of my family was neglecting the poor girl which became my problem again.

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Sean

To make things a little more modern I ended up installing some LEDs in the little side pockets, the rest are on order now. I was really happy with how they came out.
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That is basically how it ended up when the Mobius was put away for the "winter"

Sean

Unfortunately, due to the lift being too low, Texas's weird weather and the rest of the family neglect that I mentioned above, this is what happened.

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Which caused this (the drain plug was out, hooray) :???: I feel at this point I should mention that the water there, is salt water...
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And when I was checking over the boat I found this, I hate poorly organized wiring.

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Sean

The carnage from that mistake as of yesterday, I spent a good deal of time removing these items for replacement, not fun when there is pond scum remnants on the carpet...
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Sean

Keep us posted. This is kind of a reclamation project as much as anything. Sorry to hear about the bad stuff.

Thats just straight up bad luck. Looks like youre on the right track. Hopefully things will turn around for you and the Mobius.

Part of the replacements have arrived, more on the way soon.

Sean

Looking good!


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How are the repairs going? Hopefully no other problems were caused due to our weather lately. I see you refer to the bro sit. I just started a thread about using a suspension seat base. It is going to solve that issue and ride nice too.

Repairs are coming along, slowly though. Mostly weather related, my incentive to work on a boat while wearing a snorkel or risking a lightning strike is low.

I also found that the entire engine wiring harness will need to be rebuilt due to the wires wicking salt water up them and corroding. Hooray...

Sean

Mine came from salt too. There is quite a bit work to chase gremlins etc. She will be fresh from now on for me.

Harness is rebuilt, what a mess. I had to replace the relay, all the supply and ground wires, the tach wire, fuel pump supply wire, and rewrap everything. But it starts and idles happy with the new carb. Still lots left to fix but its a big step with how busy I have been.

Sean

Well it was nice while it lasted... We got the boat out of the water and onto the super sketchy trailer that came with it. Wrapped up some other wiring issues with the stereo and replaced the (new) started after it basically caught fire. Took the boat to the ramp and locked the motor up while idling on the trailer...

Turns out that the carb got some crap in it and both the floats stuck open flooding the number 3 and 4 cylinders. No damage except for the carpet (which I have ruined anyways fixing all this garbage) Pull the plugs, doused the interior in water, pulled the ignition power feed and cranked it over until it finished barfing gas.

Hopefully cleaning all that crap out and riding soon, I am starting to shrivel up from being out of the water for so long.

Sean

Pulled the carb out on saturday and found that my "new remanufacture" carb was full of shit and had a hole in the drivers side float... weirdly enough the vatozone near my house had new replacement Edelbrock floats on the shelf. The boat ran decent after fixing it but started to bog a little at high rpms towards the end of the day. I think this is partly due to the fact that the exhaust risers leak, the exhaust down tubes leak, and both mufflers leak which can smoke out a motor. I think that it is also partly due to the stock ignition never having been cleaned, checked, or replaced in the 350hrs the boat has on it. That being said, a new MSD Pro-billet HEI marine distributor, MSD Dual plug marine coil, and new plug wires are all on the way now. The steering cable is getting replaced this week, and I am looking for a nice stainless prop to run.

Does anyone know off the top of your head what the muffler specs/size are and what diameter the riser outlets are on a stock Indmar Assault are?

Sean

I believe on an 08 DD Assault 325 it is 3.5" at the riser and muffler inlet, 3" on outlet. I am using a stainless straight pipe made by FAE. I hated that leaking crap. With water cooling they dont get very hot.